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| author | Viktor Dukhovni <ietf-dane@dukhovni.org> | 2021-06-04 18:25:51 -0400 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2021-06-07 15:35:22 -0400 |
| commit | 9e724f6e5bcb31abd270ea44fb01b1edb18f626f (patch) | |
| tree | c831533bb6de654bd794bc709575220cc2bfb497 /ghc | |
| parent | 40c0f67fb557b8d0d02eb805eb94db378489d580 (diff) | |
| download | haskell-9e724f6e5bcb31abd270ea44fb01b1edb18f626f.tar.gz | |
Small ZipList optimisation
In (<|>) for ZipList, avoid processing the first argument twice (both as first
argument of (++) and for its length in drop count of the second argument).
Previously, the entire first argument was forced into memory, now (<|>) can run
in constant space even with long inputs.
Diffstat (limited to 'ghc')
0 files changed, 0 insertions, 0 deletions